Kasina in Suttas, particularly MN 77

[Gabriel]

I can’t find the thread anymore, but I remember that MN 77, its peculiar content and its authenticity was discussed in a larger topic before.

Maybe someone remembers the thread and can refer to it here?
And here is a lot of info regarding Kasinas:

10 kasinas. EBT or not?

As far as I know, in the EBT there are just 5 suttas directly related to 10 kasinas, all the other sutta references just seem to be cut and paste from those 5 suttas. Here are my notes. I would appreciate if anyone can supply quotes from any research that prove whether or not 10ksn is EBT or not. After studying those 5 suttas carefully, at first it seems there isn’t any instruction on how to practice those 10ksn, but then again, if you look for instructions of the four formless attainments, th…